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PeterPotkay · Posted: Mon Jul 16, 2007 1:34 pm Post subject:

Just getting started with Pub Sub. The app in question is JMS for both the publisher and the subscriber. I am using the MQ Broker (not WB-IMB)

All components are at MQ 6.0.2.1.

The developer is using this article to get going:
http://www.ibm.com/developerworks/websphere/techjournal/0502_woolf/0502_woolf.html
(scroll down to the Pub Sub section)

I am reading the Pub Sub User's guide:
http://www.elink.ibmlink.ibm.com/publications/servlet/pbi.wss?CTY=US&FNC=SRX&PBL=SC34660600

My (first) questions are around what queues need to be defined and what access is needed.

A publisher will register with Broker via the SYSTEM.BROKER.CONTROL.QUEUE, so they need access to that.

The Publisher can then point to a stream queue for all its topics. Can that stream queue be any name?

The subscriber needs access to SYSTEM.BROKER.CONTROL.QUEUE to register its subscription.

And then the subscriber lets the broker know what queue it will listen on for subscriptions. Can that queue be any name?

The reason I ask these questions is that in that link the developer is looking at, it refers me to a runmqsc script that defines the following queues:
SYSTEM.JMS.ADMIN.QUEUE
SYSTEM.JMS.D.CC.SUBSCRIBER.QUEUE
SYSTEM.JMS.D.SUBSCRIBER.QUEUE
SYSTEM.JMS.MODEL.QUEUE
SYSTEM.JMS.ND.CC.SUBSCRIBER.QUEUE
SYSTEM.JMS.ND.SUBSCRIBER.QUEUE
SYSTEM.JMS.PS.STATUS.QUEUE
SYSTEM.JMS.REPORT.QUEUE

I did that and granted access.

What's the deal with these? They are not mentioned in the Pub Sub User Guide at all. If the publisher and or the subscriber are JMS we are forced to use these q names? (plus apparently access to SYSTEM.BROKER.CONTROL.QUEUE as well)

Our goal is to have this app have its own dedicated Pub/Sub queues (other tha SYSTEM.BROKER.CONTROL.QUEUE) but we are getting stuck with the below error when we try to use q names other than the defaults: